Cadillac SRX Second Generation Forum - 2010+ Discussion, Is There an Easy Way to Use XM Antenna Built In the Car with a Portable XM Receiver? in Cadillac SRX Forums; I know, here I go again with another silly idea.....but I would like to use a portable XM radio for ...

Is There an Easy Way to Use XM Antenna Built In the Car with a Portable XM Receiver?

I know, here I go again with another silly idea.....but I would like to use a portable XM radio for home and car in my SRX but would prefer to use the existing XM antenna on the SRX if there is an easy way to tap into it. Any ideas?